/***********************************************************************************************************************
 * Copyright (c) 2003, International Barcode Consortium
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * Neither the name of the International Barcode Consortium nor the names of any contributors may be used to endorse
 * or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 ***********************************************************************************************************************/

package net.sourceforge.barbecue.linear.code128;

import java.util.List;
import java.util.ArrayList;

public final class CharBuffer {
    private final int size;
    private List chars;
    
    public CharBuffer(int size) {
        this.size = size;
        this.chars = new ArrayList();
    }
    
    public int size() {
        return chars.size();
    }
    
    public void addChar(char c) {
        chars.add(new Character(c));
    }
    
    public boolean isFull() {
        return chars.size() == size;
    }
    
    public String toString() {
        char[] out = new char[size];
        for (int i = 0; i < size; i++) {
            Character character = (Character) chars.get(i);
            out[i] = character.charValue();
        }
        return new String(out);
    }
    
    public void clear() {
        chars.clear();
    }
}
